public void AddFlyout(string name, Type viewType, Position position, UnloadBehavior unloadBehavior = UnloadBehavior.SaveAndCloseViewModel)
{
Argument.IsNotNullOrWhitespace(() => name);
Argument.IsNotNull(() => viewType);
Log.Info("Adding flyout '{0}' with view type '{1}'", name, viewType.FullName);
var content = (UIElement)_typeFactory.CreateInstance(viewType);
var flyout = new Flyout();
flyout.Theme = FlyoutTheme.Adapt;
flyout.Position = position;
var flyoutInfo = new FlyoutInfo(flyout, content);
flyout.SetBinding(Flyout.HeaderProperty, new Binding("ViewModel.Title")
{
Source = content
});
((ICompositeCommand)_commandManager.GetCommand("Close")).RegisterAction(() => { flyout.IsOpen = false; });
flyout.IsOpenChanged += (sender, e) =>
{
if (!flyout.IsOpen)
{
var vmContainer = flyout.Content as IViewModelContainer;
if (vmContainer != null)
{
var vm = vmContainer.ViewModel;
if (vm != null)
{
switch (unloadBehavior)
{
case UnloadBehavior.CloseViewModel:
vm.CloseViewModel(null);
break;
case UnloadBehavior.SaveAndCloseViewModel:
vm.SaveAndCloseViewModel();
break;
case UnloadBehavior.CancelAndCloseViewModel:
vm.CancelAndCloseViewModel();
break;
default:
throw new ArgumentOutOfRangeException("unloadBehavior");
}
}
}
flyout.Content = null;
flyout.DataContext = null;
}
};
_flyouts[name] = flyoutInfo;
}